3n+8=5n+21

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Solution for 3n+8=5n+21 equation: 



3n+8=5n+21

We move all terms to the left:

3n+8-(5n+21)=0

We get rid of parentheses

3n-5n-21+8=0

We add all the numbers together, and all the variables

-2n-13=0

We move all terms containing n to the left, all other terms to the right

-2n=13

n=13/-2

n=-6+1/2

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